/// <summary>
/// Wait until heartbeat gives expected results, within CAPACITY_ALLOWED_VARIANCE,
/// summed over all nodes.
/// </summary>
/// <remarks>
/// Wait until heartbeat gives expected results, within CAPACITY_ALLOWED_VARIANCE,
/// summed over all nodes. Times out after TIMEOUT msec.
/// </remarks>
/// <param name="expectedUsedSpace"/>
/// <param name="expectedTotalSpace"/>
/// <exception cref="System.IO.IOException">- if getStats() fails</exception>
/// <exception cref="Sharpen.TimeoutException"/>
private void WaitForHeartBeat(long expectedUsedSpace, long expectedTotalSpace)
{
long timeout = Timeout;
long failtime = (timeout <= 0L) ? long.MaxValue : Runtime.CurrentTimeMillis() + timeout;
while (true)
{
long[] status = client.GetStats();
double totalSpaceVariance = Math.Abs((double)status[0] - expectedTotalSpace) / expectedTotalSpace;
double usedSpaceVariance = Math.Abs((double)status[1] - expectedUsedSpace) / expectedUsedSpace;
if (totalSpaceVariance < CapacityAllowedVariance && usedSpaceVariance < CapacityAllowedVariance)
{
break;
}
//done
if (Runtime.CurrentTimeMillis() > failtime)
{
throw new TimeoutException("Cluster failed to reached expected values of " + "totalSpace (current: "
+ status[0] + ", expected: " + expectedTotalSpace + "), or usedSpace (current: "
+ status[1] + ", expected: " + expectedUsedSpace + "), in more than " + timeout
+ " msec.");
}
try
{
Sharpen.Thread.Sleep(100L);
}
catch (Exception)
{
}
}
}
